Siemens 3RT2018-1BG41 SIRIUS Power Contactor, 16A, 7.5kW, 125V DC Coil, Size S00 Original Brand New

Overview

The Siemens 3RT2018-1BG41 is a high-performance SIRIUS 3RT2 series power contactor designed for reliable switching of motors and other electrical loads. This compact and robust device features a 3-pole configuration, a rated operational current of 16A (AC-3e/AC-3), and a power rating of 7.5 kW at 400 V. It is equipped with a 125 V DC coil and includes one normally open (1 NO) auxiliary contact, making it suitable for a wide range of industrial control applications. The convenient screw terminals ensure secure and straightforward wiring.

Key Features & Benefit

• High Performance: Rated for 16A and 7.5 kW, capable of handling demanding motor control tasks.
• Versatile Application: Suitable for AC-3e and AC-3 applications, ideal for switching motors, resistive loads, and more.
• Reliable Operation: Built with Siemens’ renowned quality and engineering for long-lasting, dependable performance.
• Compact Design: The S00 size allows for space-saving installation in control cabinets.
• Integrated Auxiliary Contact: The built-in 1 NO auxiliary contact simplifies circuit design and reduces the need for additional components.
• Secure Connections: Screw terminals provide a reliable and easy-to-use method for wiring.
• Global Standards: Compliant with international standards for electrical components, ensuring compatibility and safety.

Technical Specification

• Product Name: Siemens SIRIUS 3RT2018-1BG41 Power Contactor
• Rated Operational Current (Ie): 16 A (AC-3e/AC-3)
• Power Rating: 7.5 kW @ 400 V
• Number of Poles: 3
• Coil Voltage: 125 V DC
• Auxiliary Contacts: 1 NO (Normally Open)
• Terminal Type: Screw Terminal
• Size: S00
• Series: SIRIUS 3RT2
• Part Number: 3RT2018-1BG41

Function

The Siemens 3RT2018-1BG41 power contactor serves as an electrically controlled switch used for making and breaking an electrical power circuit. When the 125 V DC coil is energized, it closes the main power contacts, allowing current to flow to the connected load (e.g., a motor). When the coil is de-energized, a spring mechanism opens the contacts, interrupting the circuit. The integrated auxiliary contact can be used for signaling, interlocking, or other control functions within the larger system.

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